Bubble-forming nozzle plate for bubble blower toy

ABSTRACT

A bubble-forming nozzle plate fastened to one end of a blower tube of a bubble blower toy is disclosed, having a front wall adapted for adhering a bubble fluid, a back wall facing the air passage defined in the blower tube and a plurality of jet nozzles cut through the front wall and the back wall in communication with the air passage defined in the blower tube. The jet nozzles have a minimum cross sectional area within the range of 0.07 mm 2 ˜7.07 mm 2 .

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a bubble blower toy and more particularly, to a bubble-forming nozzle plate for bubble blower toy, which allows the bubbler blower toy to be blown repeatedly to produce bubbles several times after each application of a bubble fluid.

2. Description of the Related Art

When using a bubble blower toy, the user need to dip the blower tube of the bubble blower toy in a bubble fluid for enabling the bubble-forming nozzle head of the bubble blower toy to be covered with a layer of bubble fluid after removable of the bubble blower toy from the bubble fluid. Thereafter, the user can put the mouthpiece of the bubble blower toy in the mouth and blow air into the bubble blower toy to force the adhered bubble fluid out of the nozzle head, thereby forming bubbles in the air. After each blowing operation, the residual bubble fluid will not be gathered in the holes in the nozzle head for blowing by the user to produce bubbles again. Thus, the user must dip the nozzle head of the bubble blower toy into the bubble fluid again for a next bubble blowing play. It is inconvenient to frequently dip the nozzle head of the bubble blower toy into the bubble fluid when playing the bubble blowing game

SUMMARY OF THE INVENTION

The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a bubble-forming nozzle plate for bubble blower toy, which allows the bubbler blower toy to be blown repeatedly to produce bubbles several times after each application of a bubble fluid.

To achieve this and other objects of the present invention, a bubble-forming nozzle plate is fastened to one end of a blower tube of a bubble blower toy, comprising opposing front wall and back wall and a plurality of jet nozzles cut through the front wall and the back wall in communication with the air passage defined in the blower tube. The front wall is adapted for adhering a bubble fluid. The back wall faces the air passage defined in the blower tube. The jet nozzles have a minimum cross sectional area within the range of 0.07 mm2˜7.07 mm2.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cutaway view of a bubble blower toy in accordance with the present invention.

FIG. 2 is a sectional elevation in an enlarged scale of a part of the bubble blower toy in accordance with the present invention.

FIG. 3 is a schematic drawing illustrating an example of the application of a bubble fluid to the bubble-forming nozzle plate of the bubble blower toy in accordance with the present invention.

FIG. 4 is a schematic drawing illustrating another example of the application of a bubble fluid to the bubble-forming nozzle plate of the bubble blower toy in accordance with the present invention.

FIG. 5 is a schematic applied view of the present invention, illustrating bubbles formed and separated from the bubble-forming nozzle plate of the bubble blower toy in accordance with the present invention.

FIG. 6 is a schematic drawing of the present invention, illustrating the residual bubble fluid gathered in the jet nozzles subject to the intermolecular cohesive force among the molecules of the residual bubble fluid.

FIG. 7 is a schematic sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating residual bubble fluid flew to the jet nozzle.

FIG. 8 corresponds to FIG. 7, illustrating bubble fluid molecules gathered in the jet nozzle subject to the intermolecular cohesive force.

FIG. 9 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a first example of the jet nozzle.

FIG. 10 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a second example of the jet nozzle.

FIG. 11 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a third example of the jet nozzle.

FIG. 12 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a fourth example of the jet nozzle.

FIG. 13 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a fifth of the jet nozzle.

FIG. 14 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a sixth example of the jet nozzle.

FIG. 15 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating a seventh of the jet nozzle.

FIG. 16 is a sectional view of a part of the bubble-forming nozzle plate of the bubble flowing toy in accordance with the present invention, illustrating an eighth example of the jet nozzle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1 and 2, a bubble blower toy in accordance with a first embodiment of the present invention is shown comprising a blower tube 1 and a bubble-forming nozzle plate 2.

The blower tube 1 comprises an air passage 11 longitudinally extending through the two distal ends thereof, and a mouthpiece 12 located on one end of the air passage 11.

The bubble-forming nozzle plate 2 is fastened to the blower tube 1 and located on the other end of the air passage 11 remote from the mouthpiece 12, having opposing front wall 21 and back wall 23, and a plurality of jet nozzles 22 cut through the front wall 21 and the back wall 23 in communication with the air passage 11. The front wall 21 is adapted for adhering a bubble fluid 4. The back wall 23 faces the air passage 11. The minimum cross sectional area of the jet nozzles 22 is within the range of 0.07 mm2˜7.07 mm2. According to the embodiment shown in FIGS. 1 and 2, each jet nozzle 22 comprises a passage hole 221 and a guide wall 222 extending from the border of the passage hole 221 to the front wall 21 of the bubble-forming nozzle plate 2.

According to the embodiment shown in FIG. 11, each jet nozzle 22 comprises a passage hole 221 extending directly from the back wall 23 to the front wall 21 without the aforesaid guide wall 222.

Further, the jet nozzles 22 can be circular. However, circular shape is not a limitation, i.e., the jet nozzles 22 can be made having a non-circular cross section. According to the embodiment shown in FIG. 16, the jet nozzle 22 has an arched triangular cross section. However, this arched triangular cross section is not the only non-circular design. However, it is to be understood that the minimum cross sectional area of the jet nozzles 22 must be within the range of 0.07 mm2˜7.07 mm2.

Referring to FIGS. 3˜5, when using the bubble blower toy for blowing bubbles, operate a bubble fluid container 3 to apply a bubble fluid 4 to the front wall 21 of the bubble-forming nozzle plate 2 (see FIG. 3) or dip the front wall 21 of the bubble-forming nozzle plate 2 in a bubble fluid 4 in a bubble fluid container (see FIG. 4), enabling a bubble fluid membrane to be formed on each of the jet nozzles 22 at the front wall 21 of the bubble-forming nozzle plate 2. Thereafter, blow by mouth a flow of air through the mouthpiece 12 into the air passage 11 of the blower tube 1 (see FIG. 5), forcing the flow of air to pass through the jet nozzles 22 and to further expand the bubble fluid membrane on each of the jet nozzles 22 and to force each expanded bubble fluid membrane away from the associating jet nozzle 22, thereby forming multiple bubbles in the air.

Referring to FIG. 6, when the air pressure in each jet nozzle 22 is disappeared, the residual bubble fluid 4 flows from the front wall 21 toward the inside of the jet nozzles 22.

Referring to FIGS. 7 and 8 and FIG. 6 again, subject to the intermolecular cohesive force among the molecules of the bubble fluid 4 and the adhesion force between bubble fluid 4 and the internal walls of the jet nozzles 22, molecules of the bubble fluid 4 are gathered in the guide walls 222 of the jet nozzles 22 and stretched by the aforesaid adhesion force, forming a membrane in each jet nozzle 22 for blowing into a respective bubble again. Thus, after the front wall 21 of the bubble-forming nozzle plate 2 is covered with a layer of bubble fluid 4, the bubble blower toy can be blown to produce bubbles several times.

According to test, when the minimum cross sectional area of the jet nozzles 22 is smaller than 7.07 mm2, the chance in which the jet nozzles 22 is refilled by the bubble fluid 4 is relatively increased. However, if the minimum cross sectional area of the jet nozzles 22 is smaller than 0.07 mm2, the fabrication of the bubble-forming nozzle plate 2 will become difficult. Therefore, the minimum cross sectional area of the jet nozzles 22 is set within the range of 0.07 mm2˜7.07 mm2.

FIGS. 9˜15 illustrate different alternate forms of the jet nozzles 22. According to the embodiment shown in FIG. 9, the guide wall 222 of each jet nozzle 22 is straight tapered; according to the embodiment shown in FIG. 10, the guide wall, referenced by 223, of each jet nozzle 22 is arched and tapered; according to the embodiment shown in FIG. 11, the guide wall, referenced by 223, of each jet nozzle 22 is a passage hole 221 extending directly from the back wall 23 to the front wall 21; according to the embodiment shown in FIG. 12, each jet nozzle 22 comprises passage hole 221 and two opposing tapered guide walls 224;225 respectively extended from the two distal ends of the passage hole 221 to the front wall 21 and the back wall 23; according to the embodiment shown in FIG. 13, each jet nozzle 22 comprises two opposing tapered guide walls 226;227 respectively extended and gradually reducing in diameter from the front wall 21 and the back wall 23 toward each other; according to the embodiment shown in FIG. 14, each jet nozzle 22 has a tapered guide wall 228 gradually reducing in diameter from the back wall 23 toward the front wall 21; according to the embodiment shown in FIG. 15, each jet nozzle, referenced by 24, is tapered and gradually reducing in diameter from the front wall 21 toward the back wall 23.

In conclusion, the bubble-forming nozzle plate 2 has a plurality of through holes 22 cut through the front wall 21 and back wall 23 thereof, and the minimum cross sectional area of the jet nozzles 22 is within the range of 0.07 mm2˜7.07 mm2. Thus, each time the front wall 21 of the nozzle plate 2 is covered with a layer of bubble fluid 4 and the bubble blower toy is blown to produce bubbles, the residual bubble fluid 4 will be gathered in the jet nozzles 22 subject to the intermolecular cohesive force among the molecules of the bubble fluid 4 for blowing by the user to produce bubbles again.

Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. 

1. A bubble-forming nozzle plate fastened to a blower tube of a bubble blower toy at one end of an air passage defined in said blower tube, comprising opposing front wall and back wall and a plurality of jet nozzles cut through said front wall and said back wall in air communication with the air passage defined in said blower tube, said front wall being adapted for adhering a bubble fluid, said back wall facing said air passage, said jet nozzles having a minimum cross sectional area within the range of 0.07 mm²˜7.07 mm².
 2. The bubble-forming nozzle plate as claimed in claim 1, wherein each said jet nozzle comprises a passage and a guide wall extending from the border of said passage to said front wall.
 3. The bubble-forming nozzle plate as claimed in claim 1, wherein each said jet nozzle comprises a passage, a first guide wall extending from one end of said passage to said front wall and a second guide wall extending from an opposite end of said passage to said back wall.
 4. The bubble-forming nozzle plate as claimed in claim 1, wherein each said jet nozzle comprises two tapered guide walls respectively extending from said front wall and said back wall toward and connected to each other and reducing in diameter from said front wall and said back wall toward each other.
 5. The bubble-forming nozzle plate as claimed in claim 1, wherein said jet nozzles are tapered, having a diameter gradually reducing in direction from said front wall toward said back wall. 